Improvement in bumper-springs



LEWIS J. FRAZEE, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN BUMPER=SPRINGS.

Specification forming part of Letters Patent No. H84Ld71, dated December31, 1872.

To all whom it may concern:

Be it known that I, Lnwrs J. Franzen, of Louisville, in the county of Jefi'erson and in the State of Kentucky, have invented certain new anduseful lm n'cvements in Elastic Fenders for Railroad (Jars, Steam andSailing Vessels, 850.; and do hereby declare that the'following is afull, clear, and exact description thereof, reference being bad to theaccompanying drawing and to the letters of reference marked thereonmaking a part of this specilication. g

The nature of my invention consists in the construction and arrangementof an elastic fender to lessen the concussion resulting'i'rorn a railwaycar, locomotive, steam or sailing vessel coming in sudden contact withany stationary or moving body or solid substance, and rendering suchconcussion harmless.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure l is an end view of my fender with a part of the coveringremoved, and Fig. 2 is a longitudinal section of the same.

A A represent a series of coils of elastic rubber tubing placed oneagainst the other. Each coil is maintained in position by means of tapesor strings B B interwoven around each fold of the coil or in any othersuitable manner. The several coils are held together in the same way bymeans of tapes or strings O U interwoven between the coils, or in anyother suitable manner. The coils are iucased in a strong covering, D, ofleather, rubber, or other suitable material designed to hold them morefirmly in position, and provided with an extended rim or collar, E, atone end, by which the fender is to be attached to cars, vessels, orother movable objects.

When such car, vessel, or object provided with my fender comes in suddencontact with any stationary or moving body or solid substance, theshoclr of the concussion is in a great measure taken off and theconcussion rendered perfectly harmless.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination of the elastic coiled tubes A A, tapes B B and O U, ortheir equivalents, and the casing D with flange E, all substantially asand for the purposes'herein set forth.

In testimony that I'claim the foregoing I have hereunto set my hand this31st day of October, 1872.

LEWIS J. FRAZEE. Witnesses:

RICHARD A. LOGAN,

Rronn. 0. GWATHMEY.

